In 1947, the U.S. military collects debris from what they claim is a crashed weather balloon outside of Roswell, N.M.; new evidence may prove that the wreckage belonged to an…

The White House has consistently denied having any knowledge of alien craft visiting Earth, but presidential encounters with UFOs and other strange phenomena can be found going all the way…

Giorgio Tsoukalos and David Childress explore the mysterious chain of manmade islets in Micronesia’s Nan Madol; built from 250 million tons of volcanic rock, there are local legends that strange…